Prompt
"Generate an image of a map of East China, a geographical region, highlighting its major cities including Shanghai, Nanjing, Hangzhou, Fuzhou, Jinan, Hefei, and Nanchang, and notable landmarks such as the Yangtze River, Qiantang River, and Huai River, with a background showcasing its humid subtropical climate and coastline along the East China Sea, in a realistic style."